stm32的can实验发送程序有问题

只看该作者 · 2011-11-27 11:09

#include "stm32f10x.h"
unsigned char TxTest;
void RCC_Configuration(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC | RCC_APB2Periph_GPIOD | RCC_APB2Periph_AFIO,ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1,ENABLE);
}
void GPIO_Configuration(void)                         //用重映射功能，
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5 | GPIO_Pin_6;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;;
GPIO_Init(GPIOC,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;    //RX
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;    //TX
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_Init(GPIOD,&GPIO_InitStructure);
GPIO_PinRemapConfig(GPIO_Remap2_CAN1,ENABLE);

}
unsigned char CAN_Configuration(void)
{
CAN_InitTypeDef CAN_InitStructure;
CAN_FilterInitTypeDef CAN_FilterInitStructure;       //初始化
CanTxMsg TxMessage;          //发送
volatile u8 TxMailBox = 0;
u32 i;
CAN_DeInit(CAN1);          //缺省模式
CAN_StructInit(&CAN_InitStructure);
CAN_InitStructure.CAN_TTCM = DISABLE;
CAN_InitStructure.CAN_ABOM = DISABLE;
CAN_InitStructure.CAN_AWUM = DISABLE;
CAN_InitStructure.CAN_NART = DISABLE;
CAN_InitStructure.CAN_RFLM = DISABLE;
CAN_InitStructure.CAN_TXFP = DISABLE;
CAN_InitStructure.CAN_Mode = CAN_Mode_Normal;
CAN_InitStructure.CAN_SJW = CAN_SJW_1tq;
CAN_InitStructure.CAN_BS1 = CAN_BS1_3tq;
CAN_InitStructure.CAN_BS2 = CAN_BS2_2tq;
CAN_InitStructure.CAN_Prescaler = 12;
CAN_Init(CAN1,&CAN_InitStructure);    //CAN初始化有返回值  #define CANINITFAILED ((uint8_t)0x00)
//Error =CAN_Init(&CAN_InitStructure);
// if (Error == 0)
// return FAILED;  //判断初始化是否成功  不成功我们会有灯显示
//CAN_ITConfig(CAN1,CAN_IT_FMP0,ENABLE);                   //有一个消息就中断，FIFO0中断

  CAN_FilterInitStructure.CAN_FilterNumber = 1;
  CAN_FilterInitStructure.CAN_FilterMode = CAN_FilterMode_IdMask;
  CAN_FilterInitStructure.CAN_FilterScale = CAN_FilterScale_32bit;
  CAN_FilterInitStructure.CAN_FilterIdHigh = 0x0000;
  CAN_FilterInitStructure.CAN_FilterIdLow = 0x0000;
  CAN_FilterInitStructure.CAN_FilterMaskIdHigh = 0x0000;
  CAN_FilterInitStructure.CAN_FilterMaskIdLow = 0x0000;
  CAN_FilterInitStructure.CAN_FilterFIFOAssignment = 0;
  CAN_FilterInitStructure.CAN_FilterActivation = ENABLE;
  CAN_FilterInit(&CAN_FilterInitStructure);
/* (注：标准帧数据帧、标准远程帧和扩展远程帧均被过滤)*/

TxMessage.StdId = 0x321;
TxMessage.ExtId =0x01;       //扩展帧
TxMessage.IDE = CAN_ID_STD;
TxMessage.RTR = CAN_RTR_DATA;       //数据帧
TxMessage.DLC = 2;
TxMessage.Data[0] = 0x12;
TxMessage.Data[1] = 0x34;
CAN_Transmit(CAN1,&TxMessage);
TxMailBox = CAN_Transmit(CAN1,&TxMessage);
i=0;
while((CAN_TransmitStatus(CAN1,TxMailBox)!=CANTXOK) && (i != 0xff))
{
  i++;
}
if(i==0xff)
{
  return 0;
}
else
{
  return 1;
}
}
void Delay(vu32 times)
{
for(;times!=0;times--);
}
int main(void)
{
  RCC_Configuration();
  GPIO_Configuration();;
  CAN_Configuration();

  while(1)
  {
TxTest = CAN_Configuration();
if(TxTest==1)
  {
GPIO_SetBits(GPIOC,GPIO_Pin_5);
Delay(1000000);
GPIO_ResetBits(GPIOC,GPIO_Pin_5);
Delay(1000000);

  }
  if(TxTest==0)
  {
GPIO_SetBits(GPIOC,GPIO_Pin_6);
Delay(1000000);
GPIO_ResetBits(GPIOC,GPIO_Pin_6);
Delay(1000000);
  }
  }
}

只有发送程序，没有接收，发送成功，PC5对应LED亮灭，发送失败，PC6对应LED亮灭，现在是发送失败，不知道那里有问题，还请高手讲解。
用的是103

stm32的can实验 发送程序有问题

stm32的can实验发送程序有问题